While out at an event last Friday, my iPhone SE's battery charge level suddenly started to plummet. It wasn't particularly cold, but I was heavily using the camera, and didn't think much of it until it unexpectedly shut down with the "plug in to power" icon. It wouldn't turn on again, so I just put it in my pocket until I got home.
What's weird is my girlfriend's iPhone SE did exactly the same thing within an hour.
I plugged in as soon as I arrived home, and the battery showed 44% state of charge. She plugged in hers, and it was over 30%. WTF?
Here are the battery stats:
You can see the battery drops suddenly, goes into the red, then appears dead when the phone shut down. Then suddenly back up to over 40% when it's turned back on.
Anybody else experience a weird and unexpected shutdown like this?
Could it maybe have been due to iOS 12.0.1 being pushed out?
What's weird is my girlfriend's iPhone SE did exactly the same thing within an hour.
I plugged in as soon as I arrived home, and the battery showed 44% state of charge. She plugged in hers, and it was over 30%. WTF?
Here are the battery stats:

You can see the battery drops suddenly, goes into the red, then appears dead when the phone shut down. Then suddenly back up to over 40% when it's turned back on.
Anybody else experience a weird and unexpected shutdown like this?
Could it maybe have been due to iOS 12.0.1 being pushed out?